Combined wood and coal burning stove



Mar. 27,1923 1,450,039

J. HOWARD COMBINED WOOD AND COAL BURNING STOVE Filed Oct. 15, 1922 m I II "M v k r l u NH I J l ,9

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Patented Mar. 27, 1923.

UNITED STATES JAMES HOWARD, OF SOUTH PORCUPINE, ONTARIO, CANADA.

COMBINED WOOD AND COAL BURNING STOVE.

Application filed October 13, 1922.

To all whom it may concern:

Be it known that I, J AMES HOWARD, a citizen of Canada, residing atSouth Porcupine, in the Province of Ontario, Dominion of Canada, haveinvented certain new and useful Improvements in Combined Wood and CoalBurning Stoves, of which the following is a specification.

This invention relates to certain new and useful improvements incombined wood and coal burning stoves wherein separate combustionchambers are provided forv theburning of wood andcoal, thecombustionchamber or fire pot for the burning of woodbeing disposed at the upperend of the stove above theicoal burning fire pot so that the heatrisingifrom the burning coalwill permit the drying of damp or green woodto be burned,

A further object of the invention resides in the provision of a combinedwood and coalburning stove wherein a damper positioned adjacent theupper end of thestove casing and in the main flue of the stove isoperable for controlling the flue passage from either the wood or thecoal burning chambers.

The invention further provides in a combined wood and coalburning stove,a single ash,pit with an inclined ledge or partition wall interposedbetween the upper vwood burning chamber and the lower coal burninhamber, a gravity chamberbeing associated withithe inclined partitionforming a closure for the rear end thereof and shutting offcommunication with the main fiue,'while an automatically operatinggravity dam er is associated with the lower end of the no fordirectingthe wood ashes into the ash pl With the above and other objects-in view,the invention consists of the novel form, combination and arrangement ofparts hereinafter more fully described, shown in the accompanyingdrawing andclaimed.

In the drawing, wherein like reference characters designatecorresponding parts throughout the several views,

Figure 1 is a front elevational view of a combined wood and coal burningstove constructed in accordance with the present invention,

Figure 2 is a vertical sectional view of a combined wood and coalburning stove constructed in accordance with the present invention,showing the separate wood and coal Serial No. 594,273.

burning chambers and the several associated therewith,

glgure 3 is a top plan viewv of the stove, an

Figure 4 is a horizontal sectional view taken on line-IVIV of Fig. 2showing the wood burning grate and the damper, plate gssoclated with theupperend of the stove Referring more in detail to the accompanyingdrawing, there is illustrated a combined wood and coal burning stoveembodymg a casing 1 of cylindrical formation supported uponfeet 2, theupper end,of'the stove casing being provided with a cover or top wall 3having a rearwardly positioned flue opening 4:,the top wall 3 beingprovided witha central opening 5 to becovered by a swlnging, plate 6pivotally mounted as at 7 upon'the top wall 3.

The interiorof the stove casing 1 adjacent the bottom wall 8.is.providedwith a coal burning chamber, ametallic frame 9 suitably mounted withinthe casing 1 supporting a coal burning grate 10 positioned above thebottom wall of the stove providing an ash pit 11, accessthereto beingobtained through the side door 12 as clearly shown in Figs. 1 and2. Alining of refractorymaterial, such asfire brick 13 is supported on'theframe9 and constitutes the wall for the-fire pot, access thereto beingobtained throughthe door 14 ,positioned, above the coal burning firepotasshown in Fig. 2.

The wood burning chamber for the stove is positioned adjacent the upperend thereof, a metallic frame 15 supporting a grate 16 with a refractorylining 17 supported on the dampers frame 15,- access being obtained tothe wood burning chamber throughthe door 18.

A combined draft flue and ash chute is provided in the stove at the rearside thereof opposite the several doors 12, 14, and 18, and disposedbeneath the flue outlet 4: carried by the top wall of the stove, andembodies sections 19 and 20 disposed rearwardly of the coal and woodburning chambers respectively, an intermediate flue section 21 beingdisposed between the fiue sections 19 and 20 as clearly shown in Fig. 2.A horizontal partition wall 22 is disposed in the stove casing tween thecoal and wood burning chambers and terminates vat the forward side ofthe adjacent flue section 21 as illustrated, the. upper surface of thepartition wall being rearwardly inclined as at 22 for receiving I theashes from the wood burning chamber thereabove and discharging the sameinto the flue section 21, the bottom wall of-the partition 22 having arefractory face 23 embedded therein as illustrated in Fig. 2 andoverlying the coal burning chamber therebeneath.

The several dampers associated with the stove include a gravity closingdamper 2i swingingly mounted upon the horizontal pivots 25 adjacent theintermediate flue section 21 with the free edge of the damper 24engaging the rear declined edge of the upper wall 22 of the partition.The lower flue section 19 is provided with a gravity closing damper 26operated bythe weight of the ashes falling thereon for discharging theashes into the pit 11. The upper damper 27 is mounted on a horizontalpivot 28 adjacent the forward edge of the upper flue section 20 and therear edge or side of the wood burning chamber as shown in Figs. 2 and l,the damper 27 being manually operated by the rod or handle 29 extendingthrough the side wall of the stove casing 1.

In the use of the stove, wood or coal may be burned separately or at thesame time, the damper 27 being operated for regulating the use of thestove. With the damper 27 in the full line position shown in Fig. 2,both the wood and coal burning chambers of the stove may besimultaneously utilized with unrestricted communication through theenclosed flue sections to the outlet flue 4. When it is desired to usethe coal burning chamber alone, the damper 27 is moved to its verticalosition as illustrated by dotted lines in *ig. 2, closing the woodburning chamber and only establishing communication between the coalburning chamber and the outlet flue 4, and when it is desired to aloneemploy the wood burning portion of the stove, the damper 27 is loweredto its horizontal position, thereby cutting off communication betweenthe coal burning chamber and the outlet flue 4 as will at once beobvious from an inspection of Fig. 2. Ashes from the wood burningchamber will descend through the grate l6 and be received from theinclined surface 22 of the partition 22, falling or moving thereon intocontact with the gravity closed damper 24 that may be manually operatedby the externally positioned handle 30 shown in Figs. 1 and 4:,permitting the ashes to fall through the flue sections 21 and 19 to bereceived upon the gravity operating damper 26 for discharge into the ashpit 11. It is to be understood that a suitable pan or receptacle may bepositioned in the ash pit 11 to facilitate the removal of ashestherefrom. Attention is also called to the door 31 communicating withthe chamber above the partition wall 22 for purposes of cleaning theupper surface 22 thereof should ashes be lodged thereon. A segmentdevice 32 positioned exteriorly of the stove casing 1 is associated withthe handle 29 for operating the damper 27 to hold the same in adjustedpositions as shown in Figs. 2 and 4:. By providing the wood burningchamber at the upper endof the stove and above the coal burning chamber,it is possible to place Wet or green wood therein for drying the same bythe heat rising from the coal burning chamberl prior to the burningthereof.

While there is herein shown and described the preferred embodiment ofthe present invention, it is nevertheless to be understood that minorchanges may be made thereinwithout departing from the spirit and scopeof the invention as claimed. 7

What is claimed as new is 1. In a combined wood and coal burning stove,a casing, a lower coal burning chamber and an upper wood burning chambertherein, a flue within the casing communicating with a flue outlet,means within the flue for controlling communication between the twoburning chambers and the flue outlet, said casing having an ash pit atthe lower end thereof, anda gravity operating damper adjacent the lowerend of the flue for receiving ashes from the wood burning chamber fordischarging the same into the ash pit.

'2. In a combined wood and coal burning stove, a casing, a lower coalburning chamber and an upper wood burning chamber therein, a flue withinthe casing communicating with a flue outlet, a manually operable damperwithin the flue for controlling communication between the two burningchambers and the flue outlet, said casing having an ash pit at the lowerend thereof, and a gravity operating damper adjacent the lower end ofthe flue for receiving ashes from the wood burning chamber fordischarging the same into the ash pit.

3. In a combined wood and coal burning stove, a casing, a lower coalburning chamber and an upper wood burning chamber therein, a flue withinthe casing communicating with a flue outlet, means within the flue forcontrolling communication between the two burning chambers and the flueoutlet, said casing having an ash pit at the lower end thereof, agravity operating damper adjacent the lower end of the flue forreceiving ashes from the wood burning chamber for discharging the sameinto the ash pit, a partition wall between the two burning chambers andhaving an upper surface inclined toward the flue and a gravity closingdamper plate positioned between the flue and partition wall.

' 4:. In a combined wood and coal burning therein, a flue within thecasing communicating With a flue outlet, a manually operable damperwithin the flue for controlling communication between the two burningchambers and the flue outlet, said casing having an ash pit at the lowerend thereof, a gravity operating damper adjacent the lower end of theflue for receiving ashes from the Wood burning chamber for dischargingthe same into the ash pit, a partition wall between the two burningchambers and having an upper surface inclined toward the flue and agravity closing damper plate positioned between the flue and partitionwall.

In testimony whereof I aflix my signature.

JAMES HOWARD.

